I was having the same problem. Slow internet on my laptop, but smartphone internet speed was fine. Ran bandwidth speed tests on both speedtest.net and testmy.net and got download speeds of 1 or 2 mbps when my connection was supposed to be 12 mbps. I noticed one of your running processes was googledrivesync.exe. This was also running on my laptop so once I shut this down, my speed immediately went back to the 11 mbps range.

I found this on the Google Drive FAQ.

Google Drive for Mac/PC currently does not throttle bandwidth, so it might consume the bulk of your Internet connection at times. If this becomes an issue, you can select Pause from the Google Drive for Mac/PC menu at any time to pause the sync.